A pipe for smoking, made from the roots of that shrub.
The white heath (Erica arborea), a thorny Mediterranean shrub.
Any of many plants with thorny stems growing in dense clusters, such as many in the Rosa, Rubus, and Smilax genera.
Anything sharp or unpleasant to the feelings.
A plant with a woody, durable stem, but less than a tree; a shrub.